{"id":2671,"date":"2020-10-12T08:49:30","date_gmt":"2020-10-12T13:49:30","guid":{"rendered":"https:\/\/wordpress.cels.anl.gov\/lans-seminars\/?post_type=tribe_events&#038;p=2671"},"modified":"2020-10-15T07:57:58","modified_gmt":"2020-10-15T12:57:58","slug":"virtual-lans-seminar-15","status":"publish","type":"tribe_events","link":"https:\/\/wordpress.cels.anl.gov\/lans-seminars\/event\/virtual-lans-seminar-15\/","title":{"rendered":"Virtual LANS Seminar"},"content":{"rendered":"<p><strong>Seminar Title<\/strong>: Variational Phase-Field Models of Fracture<br \/>\n<strong>Speaker<\/strong>: Blaise Bourdin, A.K. &amp; Shirley Barton Professor of Mathematics, Louisiana State University<\/p>\n<p><strong>Date\/Time<\/strong>: October 20, 2020 \/ 11:00 AM \u2013 12:00 PM<br \/>\n<strong>Location<\/strong>: See meeting URL on the <a href=\"https:\/\/wordpress.cels.anl.gov\/cels-seminars\/event\/virtual-lans-seminar-12\/\">cels-seminars website<\/a> (requires Argonne login)<\/p>\n<p><strong>Host:<\/strong> Stefan Wild<\/p>\n<hr \/>\n<p><strong>Description<\/strong>: Phase-field models of fracture, which I developed as numerical techniques for Francfort and Marigo&#8217;s reformulation of Griffith fracture have become some of the most popular techniques in fracture mechanics. In this talk, I will quickly derive Francfort and Marigo&#8217;s variational approach to fracture and its phase-field approximation. I will then discuss their numerical implementation, illustrated with quantitative validation and verification examples on a broad range of applications. Finally, I will discuss recent extensions, the computational challenges that they pose, and the insight they provide on challenging topics such as crack nucleation in quasi-brittle materials and propagation in heterogeneous materials.<\/p>\n<p>Blaise Bourdin, A.K. &amp; Shirley Barton Professor of Mathematics, Louisiana State University<\/p>\n<p><u><a href=\"http:\/\/www.math.lsu.edu\/~bourdin\">http:\/\/www.math.lsu.edu\/~bourdin<\/a><\/u><\/p>\n<p><em>Please note that the meeting URL for this event can be seen on the <\/em><a href=\"https:\/\/wordpress.cels.anl.gov\/cels-seminars\/event\/virtual-lans-seminar-12\/\">cels-seminars website<\/a><em>, which requires an Argonne login.<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Seminar Title: Variational Phase-Field Models of Fracture Speaker: Blaise Bourdin, A.K. &amp; Shirley Barton Professor of Mathematics, Louisiana State University Date\/Time: October 20, 2020 \/ 11:00 AM \u2013 12:00 PM Location: See meeting URL on the cels-seminars website (requires Argonne &hellip; <a href=\"https:\/\/wordpress.cels.anl.gov\/lans-seminars\/event\/virtual-lans-seminar-15\/\">Continue reading <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":43,"featured_media":0,"template":"","meta":{"_acf_changed":false,"_monsterinsights_skip_tracking":false,"_tribe_events_status":"","_tribe_events_status_reason":"","footnotes":"","_members_access_role":[],"_members_access_error":""},"tags":[],"tribe_events_cat":[2],"class_list":["post-2671","tribe_events","type-tribe_events","status-publish","hentry","tribe_events_cat-seminar","cat_seminar"],"acf":[],"_links":{"self":[{"href":"https:\/\/wordpress.cels.anl.gov\/lans-seminars\/wp-json\/wp\/v2\/tribe_events\/2671","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/wordpress.cels.anl.gov\/lans-seminars\/wp-json\/wp\/v2\/tribe_events"}],"about":[{"href":"https:\/\/wordpress.cels.anl.gov\/lans-seminars\/wp-json\/wp\/v2\/types\/tribe_events"}],"author":[{"embeddable":true,"href":"https:\/\/wordpress.cels.anl.gov\/lans-seminars\/wp-json\/wp\/v2\/users\/43"}],"version-history":[{"count":2,"href":"https:\/\/wordpress.cels.anl.gov\/lans-seminars\/wp-json\/wp\/v2\/tribe_events\/2671\/revisions"}],"predecessor-version":[{"id":2674,"href":"https:\/\/wordpress.cels.anl.gov\/lans-seminars\/wp-json\/wp\/v2\/tribe_events\/2671\/revisions\/2674"}],"wp:attachment":[{"href":"https:\/\/wordpress.cels.anl.gov\/lans-seminars\/wp-json\/wp\/v2\/media?parent=2671"}],"wp:term":[{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/wordpress.cels.anl.gov\/lans-seminars\/wp-json\/wp\/v2\/tags?post=2671"},{"taxonomy":"tribe_events_cat","embeddable":true,"href":"https:\/\/wordpress.cels.anl.gov\/lans-seminars\/wp-json\/wp\/v2\/tribe_events_cat?post=2671"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}